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| Number | Title | Issue Date |
| 7438085 | Protection and tamper notification device for use with a valve A device for prevention of particulate contamination of a valve fitting and for notification of whether actual access or tampering or potential access or tampering of a fluid from a fluid tank connected to the valve and/or the valve has occurred, featuring a fitting... | 10/21/2008 |
| 7219685 | Gate valve locking device A locking device for gate valves utilizes an available lock and avoids the necessity of having to chain or weld the lock to the bonnet or other stationary portion of a standard gate valve. The locking device includes a bracket, which mounts securely to one of the tr... | 05/22/2007 |
| 6941964 | Safety device for propane tanks A safety device prevents access to the gas valve of a propane tank. The device includes a cup which fits over the valve, and a locking device for preventing the cup from being lifted from the valve. In some embodiments, the device includes a handle which allows the ... | 09/13/2005 |
| 6901950 | Fire hydrant locking device Fire hydrant locking devices prevent fire hydrants from being turned on without a key. A fire hydrant has a keyhole in its sidewall. A security bolt is threadedly inserted into the keyhole with one end frictionally engaging with the valve stem in the interior of the... | 06/07/2005 |
| 6817482 | Bottled gas valve safety shield apparatus Safety shield apparatus for a bottled gas tank valve includes a cover which fits over the valve and an internal flange or plate within the cover that fits underneath the valve handle. A tail portion secured to the cover extends outwardly beyond the vertically extend... | 11/16/2004 |
| 6691732 | Hydrant security device The present invention provides a hydrant locking device to be used in conjunction with a fire hydrant having locking nuts which includes, a base arm having a first base arm portion and a second base arm portion. A top arm extends upwardly from the base ar... | 02/17/2004 |
| 6688326 | Locking fire hydrant A locking fire hydrant includes a fire hydrant body having an outlet port, a valve access hole, and an outer surface with a recess defined therein. The recess is configured to receive a locking cap for closing off the outlet port and the valve access hole... | 02/10/2004 |
| 6612455 | Cap lock assembly and system A cap lock system for restricting access to a threaded cylindrical end of an access or security device, such as a Schrader valve. An inner lock has a threaded cavity which screws onto an externally-threaded cylindrical end of the Schrader valve. The inner... | 09/02/2003 |
| 6463953 | Fire hydrant protection device An apparatus is disclosed comprising a first cover and an attachment device to which the first cover is connected, wherein the attachment device can be used to attach the first cover to a fire hydrant such that the first cover covers the first nozzle cap.... | 10/15/2002 |
| 6112761 | Fire hydrant locking device and wrench A fire hydrant locking device comprises a clamp which engages the hydrant stem and includes apertured butterfly wings which are engaged by a forked rod locking the stem in a closed position. The rod extends through a donut to engage a tubular recess in th... | 09/05/2000 |
| 6089253 | Fire hydrant security systems A fire hydrant security system for mounting on a standpipe of a fire hydrant wherein the hydrant has a mounting surface with holes therethrough and a bonnet mounted on the mounting surface, the bonnet surrounding a valve operating spindle assembly. The sy... | 07/18/2000 |
| 6003714 | Compressed gas cylinder safety cap and valve seal retainer A compressed gas cylinder safety cap and valve seal retainer comprising a cap having a floor, a wall and a stem, the wall extending perpendicularly from and circumferentially around the floor, the stem extending perpendicularly from the floor at the centr... | 12/21/1999 |
| 5727590 | Tamper resistant construction for hydrant actuating nut A tamper resistant construction for preventing unauthorized actuation of the hydrant nut of a fire hydrant by causing any lateral pounding or upward forces applied to the tamper resistant construction to be transmitted directly to the hydrant body cover o... | 03/17/1998 |
| 5722450 | Tamper resistant construction for hydrant A tamper resistant construction for a fire hydrant including a hydrant nut actuating body for mounting on a hydrant nut, a shroud rotatably mounted on a first end portion of the hydrant nut actuating body, a cap rotatably mounted on a second end portion o... | 03/03/1998 |
| 5651433 | Fluid operated oscillation damper A fluid oscillation damper is provided with an electromagnetically controlled valve for varying the damping force of the oscillation damper. The electromagnetically controlled valve is housed within a compartment confined by two housing parts. A first hou... | 07/29/1997 |
| 5632301 | Tamper resistant construction for hydrant A tamper resistant construction for a fire hydrant including a hydrant nut actuating body for mounting on a hydrant nut, a shroud rotatably mounted on a first end portion of the hydrant nut actuating body, a cap rotatably mounted on a second end portion o... | 05/27/1997 |
| 5630442 | Tamper resistant construction for hydrant actuating nut A tamper resistant construction for preventing unauthorized actuation of the hydrant nut of a fire hydrant by causing any lateral pounding or upward forces applied to the tamper resistant construction to be transmitted directly to the hydrant body cover o... | 05/20/1997 |
| 5544782 | Precision investment casting pressure vessel A pressure vessel for reducing air entrapment bubbles inherent in lost pattern type casting mould compounds and for increasing the density of the mould material, which in turn has proven to provide a smoother finished surface to the cast material. The pre... | 08/13/1996 |
| 5464114 | Cap for gas outlet nozzles A cap member for fitment over a gas outlet nozzle having a plurality of serrations on the exterior thereof, is disclosed. The cap member comprises a peripherally disposed main body portion spanning between an open first end and a closed second end. The ma... | 11/07/1995 |
| 5462142 | Fluid operated damper with nonreleasable cover unit for electromagnetic value A fluid oscillation damper is provided with an electromagnetically controlled valve for varying the damping force of the oscillation damper. The electromagnetically controlled valve is housed within a compartment confined by two housing parts. A first hou... | 10/31/1995 |
| 5397012 | Tamper-proof sealing plug assembly A plastic tamper-proof sealing plug assembly for use in securely sealing the vale outlet of a pressurized bottle or any other type of container. The tamper-proof assembly has a tubular gasket provided with a central opening, sized to fit into and seal a v... | 03/14/1995 |
| 5386924 | Cap for gas outlet nozzles A cap member for fitment over a gas outlet nozzle having a plurality of serrations on the exterior thereof, is disclosed. The cap member comprises a peripherally disposed main body portion having an inner surface and an outer surface, the inner surface de... | 02/07/1995 |
| 5253760 | Protective apparatus for a pressurized breathing device A protective apparatus for a pressurized breathing vessel consists of a protective valving member and carrying member. The protective valving member is a rigid member with apertures that allow the gauge and top of the pressurized vessel to be accessible. ... | 10/19/1993 |
| 5205312 | Fire hydrant locking arrangement A fire hydrant locking arrangement which is intended for utilization on a conventional fire hydrant. Moreover, also disclosed is a method of producing a fire hydrant locking arrangement through a heat-meltable locking ring which will inhibit the unauthori... | 04/27/1993 |
| 5160065 | Protective structure for a shut-off valve of a toxic gas container A protective structure for a shut-off valve of a transportable toxic gas container having a metallic hood unlockably mounted on the container around the shut-off valve, comprises a cover made of a shock absorbent material, which is unlockably mounted, typ... | 11/03/1992 |
| 5027626 | Lockable apparatus for shielding rotatable handles and like articles Apparatus for lockably covering a rotatable article, such as a doorknob, fuel can cap, and the like, so as to prevent the grasping of the rotatable article, the invention including an axially extending pin attachable to the rotatable article to extend axi... | 07/02/1991 |
| 4944424 | Safety cap assembly The valved discharge opening of a cylinder containing pressurized fluid is protected by a safety cap assembly including a dome-shaped cap that is detachably secured to a collar which is in turn threadedly engaged with the existing threaded cap ring flange... | 07/31/1990 |
| 4936336 | Tamperproof construction for hydrant actuating nut A tamperproof construction for preventing actuation of the actuating nut of a fire hydrant comprising a nut actuating body for receiving the hydrant nut in turning relationship, set screws locking the nut actuating body to the actuating nut, a shroud perm... | 06/26/1990 |
| 4899781 | Tamper indicator assembly for valves and like devices A tamper indicator for placement over valves and other regulating type devices used on storage containers to detect any unlawful operation of the valve or other device. This indicator has a sleeve-like body, closed at one end, for encasing the valve or ot... | 02/13/1990 |
| 4727900 | Tamper-proof hydrant cover A tamper-proof cover for the operating nut of a hydrant. The cover includes a housing adapted to be positioned above the operating nut for covering the operating nut, the housing having an opening, a housing mounting device securable to the hydrant and en... | 03/01/1988 |
| 4718569 | Locking system for gas cylinders A lockable gas cylinder cap system comprised of hinged upper and lower cap portions and a lockable equipment or parts holding box removably attached to the lower cap portion by a T-shaped connecting member that is slidably received in a downwardly extendi... | 01/12/1988 |
| 4716922 | Magnetic fire hydrant guard A device is provided, designed to prevent unauthorized operation of fire hydrants by completely concealing the hydrant operating nut and weather shield within freely rotating sleeves, thereby rendering the hydrant inoperable. The hydrant is made operable ... | 01/05/1988 |
| 4635676 | Protective propane tank control housing assembly A protective propane tank valve housing assembly for motor vehicle propane fuel tanks, has an elongated propane fuel tank with a set of controls disposed on the tank and spaced apart in a direction lengthwise thereon. A casing has side and end panels, whi... | 01/13/1987 |
| 4566481 | Tamperproof fire hydrants A tamperproof fire hydrant which can only be operated with the use of a special operating tool thus preventing the opening of the hydrant by unauthorized persons for unauthorized use. Additionally the tubular hold-down nut for the operating nut is so desi... | 01/28/1986 |
| 4526193 | Security cap assembly and actuator A disc-shaped inner member engages the valve stem. The inner member has a smooth uninterrupted exterior surface, except for a pair of spaced conical projections. An annular outer member is freely rotatably mounted around the inner member and has two perip... | 07/02/1985 |
| 4513773 | Valve guard A valve guard for a gas tank having a valve at the top of the tank and an apertured flange at the top of the tank which is spaced from the valve. The valve guard comprises a top wall which is adapted to overlie the valve handle and extend over the top of ... | 04/30/1985 |
| 4484595 | Tamper-proof cover for the operating nut of a fire hydrant A tamper-proof cover for the operating nut of a fire hydrant comprising a housing and an operating member. The housing has an internal flange and is adapted to be positioned on the bonnet of the hydrant over and around the operating nut so that the operat... | 11/27/1984 |
| 4428395 | Lock apparatus for storage tanks A lock apparatus for attachment to the top of an input pipe communicating with a storage tank includes an open-ended cylindrical housing for mounting to the top of the input pipe, a valve assembly pivotally mounted in the housing with a valve activating a... | 01/31/1984 |
| 4398556 | Fire hydrant cover A cup-shaped cover for a fire hydrant includes an opening therethrough for rotatably receiving a special tool that opens and closes the fire hydrant valve. In order to provide for complete drainage, at least two channels are formed in the top surface of t... | 08/16/1983 |
| 4380247 | Safety guard for valve A two-part metal security guard fits inside of the existing curved shield at the top of a conventional LP gas tank and partly encloses the gas outlet valve of the tank so as to render the same inaccessible to children as well as other unauthorized persons... | 04/19/1983 |
